#include "irrlicht.h"


int main() {
  irr::core::vector3df A(1.0f, 1.0f, 1.0f);
  irr::core::vector3df B(2.0f, 2.0f, 2.0f);
  irr::core::vector3df C(3.0f, 3.0f, 3.0f);
  irr::core::vector3df D(0.0f, 0.0f, 0.0f);
  
  D = A + B;
  D = 3 * A + 4 * B;
  D = A + 3 * (B + C);
  D = 3 * A + 4 * B + 5 * C;
  return 0;
}
